package com.itheima.consumer.controller;

import com.itheima.consumer.domain.Goods;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import java.util.List;

/**
 * Goods Controller 服务提供方
 */

@RestController
@RequestMapping("/order")
public class OrderController {

    //注入Bean
    @Autowired
    private RestTemplate restTemplate;

    //动态获取数据
    @Autowired
    private DiscoveryClient discoveryClient;
    @GetMapping("/findGoodsById/{id}")
    public Goods findGoodsById(@PathVariable("id") int id){
        //地址最好不要写死

        List<ServiceInstance> instances = discoveryClient.getInstances("EUREKA-PROVIDER");

        if(instances==null||instances.size()==0){
                return null;

        }

        ServiceInstance serviceInstance = instances.get(0);
        String host = serviceInstance.getHost();
        int port = serviceInstance.getPort();



        /*String url = "http://localhost:8000/goods/findOne/"+id;*/
        String url ="http://"+host+":"+port+"/goods/findOne/"+id;

        Goods goods = restTemplate.getForObject(url, Goods.class);

        return goods;
    }
}
